Safe to Quitsharingd on Mac: AirDrop, Handoff and why it is busy or waking your Mac
sharingd is the macOS service behind AirDrop, Handoff, Universal Clipboard, Instant Hotspot and Shared Computers in Finder. It is always running, even with sharing turned off, because it also listens for nearby Apple devices over Bluetooth and Wi-Fi. Normal is 0 to 2 percent CPU with brief spikes to 20 or 30 percent when you open the AirDrop window or an iPhone comes close. It is not safe to quit and it relaunches anyway. If it is busy all the time or waking the Mac overnight, turning off AirDrop, Handoff or Bluetooth in System Settings is the safe fix.
- What it is
- The sharing daemon. Apple's manual page lists AirDrop, Handoff, Instant Hotspot, Shared Computers and Remote Disc.
- Normal
- 0 to 2 percent CPU at rest. Short spikes when the AirDrop window is open or a device comes near.
- Not normal
- Sustained CPU above 20 percent with no sharing in progress, or frequent wakes from sleep traced to it.
- Safe to quit?
- No. It is a system service that relaunches at once, and AirDrop and Handoff stop working in the meantime.
- The one safe fix
- Turn off the feature you are not using: AirDrop to No One, Handoff off, or Bluetooth off when sleeping.
What sharingd does
The name is short for sharing daemon, as one Apple Community regular patiently explained to a poster who thought it must be malware. It runs under your user account and is responsible for every feature that involves this Mac and a nearby Apple device finding each other. AirDrop is the famous one. Handoff, which lets you pick up a Safari page or an email on another device, is another. Universal Clipboard, Instant Hotspot from your iPhone, Sidecar and Continuity Camera discovery, and the Shared section in the Finder sidebar all go through it.
To do that, sharingd keeps a low-power listener open on Bluetooth and Wi-Fi so it can hear advertisements from other devices. This is why it appears in Activity Monitor even if you have switched off every sharing option: it is still the component that would notice an iPhone nearby. As one frustrated poster put it, all sharing was disabled and Bluetooth was off, yet sharingd was still in the list. That is expected.
It is also one of the services allowed to wake a sleeping Mac. When a device on the same network or nearby over Bluetooth asks for it, sharingd can bring the Mac up briefly to answer, which is the connection to the overnight wake complaints covered below.
What normal looks like
sharingd is one of the most idle processes on a Mac, so even modest numbers stand out:
Memory is rarely the issue; sharingd stays well under a hundred megabytes. The two real complaints are CPU that does not fall and a laptop that is warm in the morning because it woke repeatedly in the night.
Why sharingd is using CPU right now
- The AirDrop window is open. In Finder, having AirDrop selected keeps a constant scan running. Close that window and sharingd settles within seconds.
- A transfer or a Continuity session is active. An AirDrop in progress, Sidecar, Universal Clipboard moving a large image, or Continuity Camera. All normal; all end.
- A device nearby is advertising constantly. A family member's iPhone, an Apple TV, or your own Apple Watch. sharingd evaluates each advertisement. In a crowded office or apartment block this adds up.
- Bluetooth or Wi-Fi is in a bad state. After waking, after a macOS update, or after a Bluetooth accessory misbehaves, discovery can loop. Toggling Bluetooth off and on, or a restart, usually clears it.
- The keychain prompt is stuck. On recent macOS versions a dialog saying sharingd wants to use the login keychain can appear repeatedly after a password change. Entering the current login password once, or opening Keychain Access and letting it update the login keychain password, ends the loop.
- Wake for network access is on. Not CPU exactly, but the cause of the overnight wakes: sharingd and friends answer requests from other devices and the Mac stays awake longer than it should.
Is it safe to quit sharingd?
No. It is a core macOS service, launchd relaunches it immediately, and in the second it is gone AirDrop, Handoff and the Shared sidebar stop working. Quitting is harmless in the sense that nothing is lost, but it fixes nothing: if the cause was an open AirDrop window or a noisy neighbor, the new sharingd picks up exactly where the old one left off.
The safe and effective levers are all in System Settings. AirDrop can be set to No One. Handoff can be switched off under General, AirDrop & Handoff. Bluetooth can be turned off when you do not need it. Each of these reduces what sharingd has to listen for without touching the process itself.
Use the checker above for any other name. sharingd gets a plain leave-it verdict: the fix is a setting, not a quit.
What to do, in order
- Close the AirDrop window
If a Finder window is showing AirDrop, close it or click another folder. This alone fixes most daytime complaints. Check Activity Monitor again after thirty seconds.
- Finish or cancel any transfer
Look for an AirDrop in progress, an active Sidecar session, or Continuity Camera. End it and sharingd drops.
- Toggle Bluetooth and Wi-Fi
Turn Bluetooth off and on from Control Center, then Wi-Fi. This resets discovery and clears most stuck loops in a few seconds.
- Set AirDrop to No One when you are not using it
Control Center, AirDrop, No One. Or in System Settings under General, AirDrop & Handoff. You can switch it back to Contacts Only in two clicks when you need it. Contacts Only is also the safer default in public places.
- Turn off Handoff if you never use it
System Settings, General, AirDrop & Handoff, switch off Allow Handoff between this Mac and your iCloud devices. Universal Clipboard goes with it. Many people never notice.
- Stop the overnight wakes
On a laptop, turn off Wake for network access in System Settings under Battery, Options. On a desktop it is under Energy. Then turn Bluetooth off before you close the lid if the wakes continue. The battery draining guide shows how to read the wake log.
- Clear the keychain prompt, then restart
If the sharingd wants to use the login keychain dialog keeps appearing, enter your current login password once. If it still returns, open Keychain Access, choose Change Password for Keychain login from the Edit menu, and set it to your current login password. Finish with a restart.
When to worry
sharingd is not a security problem in itself, but it is the front door for AirDrop, so two things deserve attention:
- AirDrop left on Everyone. In a public place anyone nearby can send you files. Contacts Only or No One is the right setting when you are out.
- A laptop that is warm every morning. That is dozens of wakes in the night, usually from Wake for network access plus a chatty device on the network. It drains the battery and shortens its life. Turn the option off.
Sustained high CPU with everything closed is annoying rather than dangerous and almost always ends with a Bluetooth toggle or a restart. If it survives a restart with Bluetooth off and AirDrop set to No One, that is worth reporting to Apple through Feedback Assistant, because at that point the fault is in macOS.
- 23:30Lid closed. Mac sleeps. sharingd and other listeners go quiet.
- 01:10A device on the network asks for a shared service. Wake for network access brings the Mac up for about a minute.
- 01:10 to 06:00Repeats every 20 to 40 minutes. Each wake costs a little battery and leaves the Mac warm.
- Next night, option offLid closed, no network wakes. Mac stays cool and loses almost no charge.
If you want the actual count rather than a guess, Safe to Quit logs every wake with the process that caused it, so you can see whether sharingd was the reason the Mac was warm this morning.
What people hit, in their words
“I have all sharing 'disabled' my blue tooth is disabled yet sharingd shows up in activity monitor.”
“Sharingd should only appear if file sharing is enabled.”
“sharingd is short for sharing daemon.”
Questions people ask
What is sharingd on Mac?
sharingd is the sharing daemon in macOS. Apple's manual page says it handles AirDrop, Handoff, Instant Hotspot, Shared Computers and Remote Disc, and it also supports Universal Clipboard, Sidecar and Continuity Camera discovery. It runs under your user account from login and keeps a listener open on Bluetooth and Wi-Fi so this Mac and your other Apple devices can find each other.
Why is sharingd running when I have sharing turned off?
Because the switches in the Sharing pane control things like File Sharing and Screen Sharing, which are different services. sharingd is about nearby devices, and it keeps running so that AirDrop or Handoff can work the moment you turn them on. It is expected to be in Activity Monitor on every Mac, even with Bluetooth off, and at rest it uses almost nothing.
Why is sharingd using high CPU?
Most often because the AirDrop window is open in Finder, which runs a constant scan, or because a transfer, Sidecar or Continuity session is active. A stuck Bluetooth or Wi-Fi state after waking or updating can also loop discovery. Close the AirDrop window, toggle Bluetooth off and on, and set AirDrop to No One when you are not using it. A restart clears the rest.
Can I quit sharingd?
Not usefully. It relaunches at once and nothing changes, while AirDrop and Handoff stop working for the second it is gone. The effective controls are in System Settings: set AirDrop to No One, turn Handoff off under General, AirDrop & Handoff, or turn Bluetooth off. Each reduces what sharingd has to listen for without force quitting anything.
Why does sharingd keep asking for the login keychain?
This prompt appears when the login keychain password no longer matches your login password, usually after a password change. Enter your current login password once. If the dialog keeps coming back, open Keychain Access, choose Edit, Change Password for Keychain login, and set it to the current login password. A restart afterwards ends the loop in nearly every report.
Is sharingd waking my Mac at night?
It can. With Wake for network access on, another device asking for a shared service can wake the Mac for a minute, and in a busy home network that can repeat dozens of times a night, leaving a laptop warm and drained. Turn the option off in System Settings under Battery, Options (or Energy on a desktop) and, if needed, switch Bluetooth off before closing the lid.
Sources and further reading
- sharingd(8) manual page Apple's description of what the daemon handles.
- Why is sharingd running with all sharing disabled? Apple Community, Jun 2023. Source of the quotes above.
- sharingd wants to use the login keychain Apple Community, Apr 2026. The repeating keychain prompt.
- What is sharingd and why does it use CPU? Ask Different. Discovery over Bluetooth and Wi-Fi.
- Use AirDrop on your Mac Apple support, including the receiving settings.